Acer Aspire 1620 Series, Service Manual

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22 Aspire 1620
Access time (typ.) QSI-
Random: 90 ms
Full Stroke: 180 ms
Mitsumi-
Random: 100 ms
Full Stroke: 240 ms
Rotation speed 5100 rpm for QSI
5400 rpm for Mitsumi 24X CAV mode
Data Buffer Capacity 128 KB (built-in)
Interface Compliant to ATA/ATAPI-6
Applicable disc format QSI:
CD-DA, CD-ROM Mode-1, CD-ROM/XA Mode-2, Form-1 and Mode-2 Form-2, CD-i
Ready, Video-CD (MPEG-1), Karaoke CD, Photo-CD, Enhanced CD, CD Plus, CD
Extra, i-trax CD, CD-Text, CD-R and CD-RW
Mitsumi:
CD-DA, CD-ROM (Mode 1 and Mode2) CD-ROM XA (Mode 2 Form 1 and Form2),
CD-I (Mode2 Form 1 and Form 2), CD-I Bridge (Photo CD, CD EXTRA), Enhanced
CD, CD-RW, CD-R, CD-TEXT
Loading mechanism Drawer with soft eject and emergency eject hole
Power Requirement
Input Voltage +5V[DC]+/-5%
DVD-ROM Interface
Item Specification
Vendor & model name MKE SR-8177
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/sec) Average Sustained:
CAV mode
775~1800 blocks/sec
(10.3X to 24X)
1550~3600kBytes/sec (Mode 1)
1768~4106 kBytes/sec (Mode 2) DVD-5:
Normal Speed (1X) 11.08 Mbits/sec
CAV mode 36.67~88.64 Mbits/sec
DVD-9/DVD-R:
Normal Speed (1X) 11.08 Mbits/sec
CAV mode 36.67~88.64 Mbits/sec
CD-ROM Interface
Items Specification